UNGULATA. 41 



The specimens of Tapirus found in Britain, and now to be 

 called T. arvernensis, are all derived from the Nodule-bed of the 

 Red Crag of Suffolk. The species has also been found in Pliocene 

 beds at Issoire, Perpignan, Montpellier, and Velay, in France, 

 and at the same horizon in the Vul d'Arno, Italy. 



Tapirus prisons seems to have been restricted to the Upper 

 Miocene; it has been found at Eppelsheim (Hesse Darmstadt), 

 and Casino, Italy. 



Genus HYRACOTHERIUM, Owen. 



HYRACOTHERIUM LEPORINUM, OWEN. 



PLATE V., FIG. 6. 



This genus and species was founded by Sir R. Owen in 1839 

 (Trans. Geol. Soc., Ser. 2, Vol. VI., Part i., p. 203) for a specimen 

 from the London Clay of Herne Bay, and further illustrated in 

 1846 (Brit. Foss. Mamm., p. 419). In 1865 an example from the 

 Red Crag Nodule-bed of Suffolk was described by the same 

 author (Geol. Mag., Dec. 1, Vol. II., p. 339, Plate x., fig. 2). 

 Both the above specimens are in the British Museum (Cat. Foss. 

 Mamm., Part iii., p. 11, 1886); but other examples from the 

 same horizon have since been found, and are preserved in the 

 Museum of Practical Geology, York Museum, and in Mr. E. C. 

 Moor's collection at Great Bealings. 



The Red Crag specimens have been almost certainly derived 

 from the Eocene. 



(SUBUNGULATA.) 



Genus CORYPHODON, Owen. 

 PLATE V., FIG. 12, a, b. 



Sir R. Owen (Brit. Foss. Mamm., p. 299, 1846) gave the name 

 of Coryphodon eocenus for a portion of a lower jaw from the 

 Lower Eocene of Essex, the teeth of which were something like 

 those of the Tapir, but larger. Further light has been thrown on 

 the genus by the finding of other specimens on the continent 

 and in this country (Proc. Geol. Assoc., Vol. VIII., p. 250). 

 Teeth of Coryphodon have been met with in the Nodule-bed of 

 the Red Crag of Suffolk, and seem to have been first recognized 

 by Prof. Flower (Quart. Journ. Geol. Soc., Vol. KXX., p. 6, 

 1874), and specimens are to be seen in the Ipswich Museum 

 and in the Museum of Practical Geology. It is highly probable 

 that all these Crag examples have been derived from Eocene Strata. 



